Plano's new marine trunks are made from high-impact plastic with reinforced lids and heavy-duty latches. The 56-quart box measures 24 by 15 by 13 inches; the 68-quart box measures 30 by 14¼ by 12¾ inches; and the 108-quart box measures 37¾ by 14 by 18¼ inches. All sizes feature an O-ring seal and are treated with a UV-protective coating. The marine-gray-and-blue boxes are stackable and come with molded ports so they can be secured with tie-downs and padlocks. The trunks cost $49.99, $59.99 and $79.99.